If we are caught in a busy mind space or feeling contracted by a challenging emotion spending time in nature is very healing.
Go for a walk in the bush or at the beach and just become present with what is around you . Never judge the business of the mind just keep gently bringing the awareness back to your surroundings.
Notice the feeling of your feet on the earth, or be aware of the trees, or the sunlight glistening on the leaves.Watch the waves coming in and out, listen to the sounds of the birds or the breeze or the surf.
There is a calming and an opening as we do this. Sometimes insight comes , sometimes as we just observe what is inside us with acceptance it dissipates, mostly just being present with nature brings healing.This is mindfulness.