One of the easiest ways to identify an Oak tree is to look at its leaves. Oak tree leaves have a distinctive leaf shape. You can even identify the 600 species of Oak trees based on the shape and color of their leaves.
When we have been feeling discouraged about health issues, self-heal essence helps us take responsibility for our own recovery. It helps us to trust in what we need for our recovery and to break away from the dogma of how we are "supposed" to mend.