Zemer bechol yom - sing every day - is an instruction to hum a tune as a way of being cheerful & even happy.
Singing is good for our body & for our neshama / soul.
Hashem gave each of us a voice & He loves to hear from us.
Do you want to be happy ?
The secret is to rejoice & sing about all the great portions Hashem is providing you with all the time (Avos 4:1).
Singing itself is a gift we all get from Hashem & we need to practice it daily. Praising Hashem brings us closer to Him & there is a lot to sing about that.
Now may be a good time for a gem of Torah study.
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