Meditation offers a path towards working on these universal problems, not as a form of therapy but almost as a side effect of getting to know yourself. There is a general misconception that the purpose of meditation is to achieve some trance-like, quiescent state or to stop thoughts completely. On the contrary, meditation puts us directly in touch with our innermost thought processes. The idea is to learn to let the mind be, to let thoughts arise and subside without the usual tendency to try to push and pull them. Much of the difficulty one faces in dealing with a disability stems from the constant attempt to measure up to supposed social norms.
Meditation helps put things in a truer perspective.
This approach contains within it the implicit assumption that the disabled person will never fully arrive. Meditation calls into question much of what passes for normalcy. Much better to reach an individual, unique assessment of one's strengths and weaknesses than to chase after conventional, and often unexamined, notions of happiness. The rage is extra, unnecessary, often blocking the very communication which could change the situation. Compassion is the highest good in Buddhism, turning the focus away from one's individual situation towards that of society at large.