Swimming 
To dream that you are swimming implies that you are entering a period of self-discovery and personal growth. Perhaps you need assistance with matters pertaining to your feelings. This is a normal dream for people who are seeking professional emotional healing.
To dream that you are swimming underwater indicates that you feel overwhelmed by your emotions. Perhaps you are pushing yourself too hard to confront these issues.
Tadpoles
To dream of tadpoles represents indecision in a business venture that will cause concern.
Tapeworm
To dream that you have or see a tapeworm is a bad omen. You will soon find yourself in poor health and will find no pleasure in your life.
Tear Gas
To dream of having tear gas sprayed at you is an indication that your current relationship has left you feeling trapped and unable to breathe. Consider what past events are still causing you pain.
Tomatoes
To dream about tomatoes represents peace and contentment at home.
To dream about eating tomatoes means physical well-being.
Training
To dream that you are training for something indicates that you lack assertiveness and confidence about your abilities. This dream may also reflect a desire to improve your personality.
Trenches
To dream of trenches means that you need to be careful about dealing with strangers, as they may bring you failure, loss, and deceit.
Twilight
To see the twilight in your dream signifies an end to unpleasant conditions in your life.
Vitamins
To dream of taking or seeing vitamins symbolizes the weak nature of your self-control. You must strive to become stronger in your convictions. Conversely, vitamins may indicate that you have made some poor dietary decisions and your body is lacking in some important nutrients. Consider changing your diet to include more healthy food choices.
Vultures
To dream of a vulture typically represents your past. Everything you have experienced, learned, and seen can assist with the issues that are facing you in your waking life. Take past lessons to heart.