Importance of art work in mental healing
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Studies have shown that expressing themselves through art can help people with depression, anxiety, or cancer, too. And doing so has been linked to improved memory, reasoning, and resilience in healthy older people.

Art can be a good coping mechanism.

Explanation:

It can allow people to express their dark thoughts(Vent Art) as well as be relaxing. Mind-numbing activity's such as painting a paint by number can have a similar effect to meditation. Though if your having any extreme mental problems I recommend you talk to a professional.  

your word would be isle.

isle is an island or peninsula especially a small one.

if you add the letter "a" you get aisle, which is a passage between 2 rows of something like chairs, shelves, or something else.