The Science of Yoga (union) exists because of the mechanics involved that are the nature of reality. One only need tap into the nature of reality by using the tools that allow you to do so.
TT, thanks for pointing this out. You are perhaps aware that Jesus advocated "yoga".

Check out Matthew 11: 25-30.
28 Then Jesus said, “Come to me, all of you who are weary and carry heavy burdens, and I will give you rest. 29 Take my yoke upon you. Let me teach you, because I am humble and gentle at heart, and you will find rest for your souls. 30 For my yoke is easy to bear, and the burden I give you is light.”
The Greek NT for, 'yoke' is ZUGOS. I understand that it is also the Greek for yoga.
G~O~D--Now & ForeverIS:Nature, Nurture & PNEUMA-ture, Thanks to Warren Farr&ME AT www.unitheist.org