One funny thing that can happen in life is when you try to delete away the unimportant messages on your mobile phone, you accidentally delete everything. All the efforts throughout the year have gone into waste.
Why would anyone bother to keep messages? Is it a waste of time in the first place when you will not be appreciated by the senders?
Is it good to be sentimental?
It is probably an indication to forget all the past and especially the unhappy things.