An easy way to remember(!) this is that "remembering" is something you do yourself whereas "remind" stems from an outside source; that is another person or thing causes you to think of or remember something. Examples: I remembered to lock the door before I went out this time. My mother reminded ( caused me to remember) to lock the door before I went out.

Remind is the causative verb of remember, so therefore, remind means "to cause someone to remember". Remember is just a transitive verb, where its direct object is the thing or person you remember. It is the opposite of "to forget". Examples: Please remind (make me remember) me tomorrow that I need to take my pill. I always remember (do not forget) your birth date.

Remind must always be followed by a subject. Remind me to call my aunt. Did you remind your neighborhood that you are leaving today? That song reminds me of my vacation in Tel Aviv. Remember is primarily the act of keeping something in your mind. I remember every song from my vacation playlist. I remembered to ask my neighborhood to water my plants. I did not remember to call my aunt; therefore, she did not pick up Grandpa from the airport. Remember to get your visa before the flight. (note the use of to) A colloquial use is "remember me to" such as Remember me to your sisters. This means to say hello to them or to greet them on your behalf. You send your regards.

You are welcome!