The Gemora in Chagiga 13a says "the innermost parts of Torah are only given to someone whose heart is worried or anxious within himself"...
The Tzemach Tzedek (whose yartzeit is 13 Nissan) explains (derech mitzvosecha, tumas metzora 102,2) that "yiddeshe anxiety isn't depression c'v, rather a lack of open revealed connection to Hashem"... And "through connecting to Torah (in whatever form), the yid will truly be happy"...
In other words, specifically because of our great anxiety within, we will therefore come so very, very close to Hashem and His Torah...