Silence and or with plain picture (nature) of the surrounding object is cured of the disease

Silence and or with plain picture (nature) of the surrounding object is cured of the disease while doing yoga and or meditation.

Yoga is a posture of body in different ways doing asana's, in each asana spend a few minutes/seconds.

Meditation is a process of observation of breath and concentration of mind with fewer minutes.
While doing meditation you can keep the body in free/relax posture.

Silence is a concentration of answering the questions

Silence is a concentration of answering the questions and also writing the answers to the questions with detailed explanations.

Knowledge is a special kind of learning behavior

Knowledge is a special kind of learning behavior with a concentration of gaining information and imagination of future thoughts or ideas.