A dog or in a dream is generally a sign of protection.
The dream could be acting as a reminder to you to protect something or someone in your life- perhaps more so than you are now.
Or are you the one who needs looking after?
If the dog was friendly, this might indicate that someone is looking out for you.
A dog can also be a sign of faith and companionship, so perhaps as well as feeling protected, this person also offers you these things too.
If you saw a domesticated dog, it's arguable this denotes happiness. If you feel reassured of this person's protection, faith and companionship every day- this may bring you great happiness.
The dream might also imply that you have good values and intentions that will help you to progress in life- such as generosity, loyalty and fidelity- all of which we associate with such an animal. Especially if you were kind towards the dogs in your dream.
If you were buying or adopting a dog, it can mean that you yearn for more companionship in your life. Perhaps this is the one thing your partner lacks? Or you feel you need to feel this more from them?
If you gave the dogs back after adopting them this could be your subconscious telling you to do what is appropriate for you rather than what you think others would approve of.
It’s possible you have rejected a friendship that has come your way lately. If you felt guilty or bad at taking the dogs back, then perhaps you think you made the wrong choice by pushing this person away.
If you had a close connection with a pet dog that has passed, such as letting it sleep on your bed every night, caring for it when it was sick and walking and feeding it every day, your beloved pet is bound to have left an impression on you. Often the memory of them will filter through into your dreamscape.