With the right intentions and sincere efforts, tapofal is the natural outcome of sincere and dedicated tapasya. Tapasya is not a karma; it is a status of complete detachment from externalities and a total renounced state with Parabrahma saakshaatkaaram and hence the tapophala also does not belong to the tapasvi. One definitely attains different siddhis in the process of saguna dhyaanam as well as in nirguna dhyaanam.
Siddhis and its use
These powerful siddhis are handy to the tapasvi but the wise one does not exhibit or unnecessarily use such siddhis for any selfish as well as for materialistic benefits. One naturally gains these siddhis during tapasya which is normally to enhance his inner capabilities to further continue with the rigorous practice of deep dhyaanam or tapasya. This explains why Rishis utilize siddhis only for world peace. When mango seeds are sown it grows up to be a mango tree as it is in direct contact with the prakrithi. The tree bears fruits seasonally; the trunk of the tree, leaves, and branches are used in different ways by mankind, by birds and other insects.
The tree never enjoys any of its parts including fruits for its own benefit. Sincerity is a status; truth is a status. A Rishi gains tapophala because he maintained prakrithi niyama. When one attains tapophala one is no more interested in worldly pleasures and desires including siddhis. One attains siddhis when one is still at the level of lower conscious, astral, beneficial, materialistic plane, where it is only attached to desirous functioning. It is used by some as they still are entangled in worldly matters and they can never attain Brahma saakshaatkaaram. Siddhis can be attained through meditation and there is tantric process involved. Such siddhis have a utility only when one is alive and with the sharira and mana. One functions at the lower conscious level or lower astral desirous level with the only intention to fulfil desires of the mind.
Desire of Siddhis
When the desire for siddhi arises one must question one's self. Why do you want it? Is it for some physical pleasure? Is it worth the time and energy which can be better utilized for attaining Parabrahma saakshaatkaaram ? Those entangled in materialism do not know that siddhis come along with saakshaatkaara. Yogis do not utilize these siddhis as they do not want to get entangled in unnecessary materialistic activities and lose their valuable tapophala. They utilize it only for worldly peace and without exposing themselves.
However, many, on attaining siddhis as a result of tapophala during the process of dhyaanam for mukti, lose track of their path to wards moksha or Brahma-saakshaatkaaram. Power distorts one's thinking and perceptions. Many, in their spiritual pursuits, find satisfaction once they attain some siddhi and derive pleasure out of it. Jnaanis however, maintain that attainment of siddhis which is natural during tapasya should not become a stumbling block in the progress on the spiritual path. One does tapasya for attainment of mukti from all karmas (karma mukti) and to attain the higher consciousness. Parichitta jnaanam is the consciousness prevalent in the mind. During the attainment of Parabrahma saakshaatkaaram siddhis come automatically. At this moment no swaartha bhaava, no requirement for the body or mind exist. The mind is at a different plane.
Samyama on the mind
By performing samyama on others' mind, his mental images are known; this is simple mind reading. It is not just at the psychic level. At the psychic level, mind reading or thought reading is possible but through samyama mental images are known; the images of praarabdha karmas can be known. In fact, all the incidents reflect in the mind. It is through those reflections that the mind functions in the sanchita karma. So samyama helps understand the person's praarabdha, sanchita and agami karmas, including the purpose of his birth. Today at the lower level people practice mind-reading. Some amount of mind-reading can be done by anybody.By focusing on the third eye of the person, making them relax and taking them into trance, their mind can be read; their thoughts can be identified.
A siddha, through samyama can see the background and details of any living being including animals and insects. Once Maharishi Vasistha was walking on the road and a worm wanted to cross the road. The worm was in a hurry and suddenly he saw Maharishi Vasistha. Remember, a tapasvi is in tapasya every moment of his life.He may be looking at you but the whole universe is in front of him. Maharishi Vasistha, because of his capacity for samyama, could see everything and asked the worm why he was in a hurry. The worm expressed that a king's chariot would soon be coming and the worm wanted to cross the road before that; else he would be crushed under the wheels.
Story of a Worm
The worm offered his pranamams to Maharishi and said it had seen the Maharishi in the last janma. The worm then narrated his own story of a previous janma when he had been a cruel man. He would lend money to people and would kill anyone who failed to pay back. Maharishi Vasistha had warned him at that time that if he continued such atrocities he would be born a worm the next janma. He had also been warned that he would experience scratches all over the body. The worm said he was conscious that he was undergoing the wrath of the previous janma ; but how could he remember all this despite committing such atrocities? Maharishi explained that despite the brutal, indecent, merciless, and adharmic character, he looked after his mother with profound respect and served her as one would serve God. He had his mother's blessings because of the maatru seva rendered selflessly.The Maharishi also informed him that his penance was over right at this moment. Soon thereafter,the chariot came and crushed him; the worm attained mukti !
One can gain the capability to become invisible to others through performance of samyama on one's own physical body.During samyama one can change the form and shape of the physical body.The body can be made dark, so that others cannot see him. Similarly one can increase the brightness of the body equivalent to sunlight. Thus, by this practice, in places where satsang is held with the right objective, all Rishis and saints remain present, but invisible to others.This phenomenon can be applied on one-to-one basis provided both are practicing the discipline of samyamam. It is also possible to make the sound disappear.