“No misfortune can happen, neither in the earth nor in your selves that was not set down in writing before We brought it into being – that is easy for Allah. So you need not grieve over what you miss or be overjoyed by what you gain.” (Qur’an 57:22-23)

And again, there’s a difference between initial regular human sadness when calamity hits, and choosing to hold onto it for a prolonged period of time, and even more-so if there are experienced community members (shuyukh, therapists, counselors, etc.) in the race who offer to help remove this load. When it gets to a point where a person can not function, there is an attachment that must be let go. In this sense, heavy emotions can in and of themselves be signs of attachments, of weights that slow the person down in their race to Allah (swt).