CARTOON RIDDLE NO FURTHER A MYSTERY

Q: I weaken all Guys for several hours each day. I explain to you strange visions if you are away. I choose you by evening, by day choose you back again. None endure to have me, but do from my lack. What am I?Concern: Change the phrase "CAT" to the term "DOG" by switching just one letter at any given time, with Just about every stage resulting in a