אֶשְׁפֹּ֣ךְ לְפָנָ֣יו שִׂיחִ֑י צָ֝רָתִ֗י לְפָנָ֥יו אַגִּֽיד׃
je répands devant lui ma plainte, je lui fais part de ma détresse.
Sichot HaRan
It is very good for whoever is able to pour out conversation before Hashem Yitbarach with prayers for mercy and pleading, like a son pleading before his father - for has Hashem Yitbarach not already called us children, as it is written [Dvarim 14:1]: "You are children to Hashem your G-d". As such it is very good to give out one's conversation and agony before Him, as a son who complains before his father, attempting to reach his favour and mercy;