Every one of us on earth knows someone who is suffering from something. It could be thought related (fears, phobias, etc.), emotions related (anger, etc.) depletion of energy (lethargy, not feeling energetic, etc.) or even having a simple or difficult physical condition (any physical illness, pain, etc.).
These conditions of the thought, emotion, energy or physical body could be from short duration or may be continuing for some time. Each person suffering from either of these conditions or a combination of them has been looking for a simpler solution to come out of his/her condition(s).