Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 3
Fragment ID: 14855
If it [turning the seminal energy into ojas] is to be done by a process, it will have to be by Tapasya (self-control of mind, speech, act) and a drawing upward of the seminal energy through the Will. But it can be better done by the descent of the Force and its working on the sex-centre and consequent transformation, as with all other things in this Yoga.