Spiritual avoidance is when someone operates purely from the higher chakras and disconnects her/him/them-selves from the lower chakras. Basically, someone disconnects from reality and escapes through spirituality and being "out of the body". You can see this a lot in spiritual communities, people who habitually journey into the ethers to avoid confronting themselves head on. Sometimes these types of people who forget that there's more work to be done and instead, sustain by absorbing high vibrational frequencies from high vibrational environments and drain other high vibrational people, but often don't do the real work. Meaning, they actually can't self-sustain their vibration without depending on something to carry them. Some people opt for this type of dissociation without meaning to, and that leaves you susceptible to being taken advantage of by other people and swept away in issues, energies that aren't yours.
Spirituality should never be used as a bandaid. It feels great to be in our higher chakras sometimes, to dissociate because it feels light up there, but eventually you're going to be brought back down. However high you go, you'll experience the equal effect downward, and sometimes it can be violent and even more traumatic. By going up in the higher chakras you are imbalanced. Many MANY spiritual teachings advocate for this type of transcendental approach, whereby your body is shameful, emotions are wrong and that for true mastery, we need to only be in spirit.
We are here on earth for a reason. Our spirits know this, so why leave the body? The most important thing you can do is to remember to ground. To stabilize, to always ask yourself what's real on this spiritual journey. What is real to you? How do you really feel? It's not healthy to constantly defer to love and light and continue to keep our hearts wide open to be drained and used. It's not okay to be soft, giving and peaceful ALL THE TIME in a world that's not any of those things and will eat you alive if you have no ego whatsoever. It's not okay to forget that we have anger, or frustration, or lower vibrational states. It's also not okay to think we've "moved beyond it". It's part of the human experience: basically, never forget you are human and that you have an ego because you need it to survive. True mastery, in my words, is learning what your ego is, all the shadow aspects, repressed and discarded elements, putting it back together and putting a leash on it. So instead of it controlling you, you control it.