I'll come when thou art saddest

I'll come when thou art saddest,
Bring light to the darkened room,
When the rude day's mirth has vanished,
And the smile of joy is banished
From evening's chilly gloom.

I'll come when the heart's worst feeling
Has entire, unbiassed sway,
And my influence o'er thee stealing,
Grief deepening, joy congealing,
Shall bear thy soul away.

Listen! 'tis just the hour,
The awful time for thee.
Dost thou not feel upon thy soul
A flood of strange sensations roll,
Forerunners of a sterner power,
Heralds of me?