Anyone can practice yoga
For one who offers to Me with love, a leaf, a flower,
a fruit or water, I accept that offering of love,
which if from one whose heart is pure.
Bhagavad Gita 9.26
If we practice the correct steps to yoga, then the weeds are thinned out, ignorance falls away, illumination rises/grows, we become knowers of true knowledge, when that happens uninterruptedly then we radiate light of knowledge.
State of discriminative discernment.
Patanjali Yoga Sutras 2.28