Spasmodic Service

There is a medicine called antispasmodic, supposed to be a remedy for spasms or convulsions. Is this not a much needed medicine for many Christian workers, who only do service for Christ now and again, and do it like one in a convulsion fit? You can easily see that they are not happy in it. The antispasmodic for such is the endowment of the Holy Spirit, which fills the heart with love for souls, and faith in Christ. This makes work steady and persevering.