The danger with internal power is that beginners often think they are using it, but are simply using external strength instead.
The ability to throw around body weight is no reflection of internal skill.

Internal power is real and tangible. It can be tested, explored and practiced.
But it has to be soft.

Most neigong are quite convoluted and esoteric.
They are like zen koan; becoming more fascinating as your understanding deepens and you are capable of seeing more.

Be patient. Be discerning. Watch your own practice carefully and address the means, the how.

It is important not to mistake the menu for the food. An exercise or action designed to cultivate a neigong is not the neigong.

It is only when no doing occurs and the effect is present that the neigong can be said to exist.
A person with a neigong has the effect all the time.
It does not come and go. It is part of their everyday movement.

This is why it is considered to be internal power. Neigong is inherent. It remains. It is a part of you.

Modern culture encourages the individual to parade themselves publicly, to broadcast their skills and draw attention.
This is not what The Art of War and The 36 Strategies recommend.
It is not good to be noticed.

Anonymity is a common taoist theme.
By remaining humble and quiet, unremarkable and unnoticed, a person can proceed through life freely.
Drawing attention is perceived as being unwise because you cannot determine whether the attention is good or bad.