You are not real.
Look around you. What do you see? Your computer? A desk? Maybe you see a loved one: a family member or a close friend. Think about the last time you did something with that person. Maybe you went to the shops, or the cinema, or out for dinner. I’ll bet you had a good time, that it’s a happy memory. Now what if I told you that none of it is real. It never happened. You don’t exist. They don’t exist. Your desk, your computer? They don’t exist either. You are a mere statistical fluctuation in a cold, dark, unending spacetime. You are a Boltzmann Brain.
Lir, like his Welsh counterpart Llŷr, is a god of the sea, though in the case of the Gaelic myths his son Manannán mac Lir seems to take over his position and so features more prominently. It is probable that more myths referring to Lir which are now lost to us existed and that his popularity was greater, especially considering the number of figures called 'son of Lir'.