Because StarClan had told Cinderpelt that she was going to die and that they were powerless to help her. Then she went through the whole book with that knowledge that she was going to die and she never told a single cat. She eventually did die but StarClan decided to give her another chance because she died with such dignity.
Yes, Cinderkit is Cinderpelt. StarClan let Cinderpelt relive her life, because that was not her wanted destiny. So they sent her back, letting her become a Warrior. It was her Second chance. She is now know as Cinderheart. Cinderheart does not know that she is Cinderpelt. Sometimes she has flashbacks of the old camp in the forest and from when she was a medicine cat. And she wonders why she has a vast knowledge of medicine and herbs. ;)
Leafpool discovers that Cinderkit is actually Cinderpelt in the paragraph where Cinderpelt recounts her past life as a warrior. This revelation occurs towards the end of the book "Sunset" when Cinderpelt is injured and reveals the truth to Leafpool.
When Sorreltail began to have her kits, badgers began to attack the ThunderClan camp. Cinderpelt defended them as well as she could, but it was useless. Cinderpelt was severely wounded, and Leafpool, (who had ran away from the forest with WindClan cat, Crowfeather), walks in just as Cinderpelt was about to die. After she had died, Sorreltail named one of her kits, (a grey she-cat), Cinderkit, after Cinderpelt, who gave her life to save Sorreltail and her kits.-With help from warriors.wikia.com.
To relive something again, for example to relive an experience you went through before, or to relive one's life, or to relive an emotion or a feeling.
At first Firestar loves Spottedleaf, but then Spottedleaf dies, so he starts liking Sandstorm. In Firestar's quest Sandstorm thinks she is only second best a backup. But then Firestar says that Sandstorm will always be his number 1 love. They then have two kits Squirrelflight and Leafpool. And Firestar will probably love Sandstorm in Starclan much,not Spottedleaf.
Spottedleaf is depicted as kind, gentle, and wise in the Warriors book series. She is known for her compassion and healing abilities, often offering guidance and support to her clanmates. Spottedleaf is also loyal and dedicated to ThunderClan, willing to protect and serve her clan at all costs.
Well yes though she doesn't exactly know about her past life.
Oh honey, Spottedleaf may have had more lives than a cat, but she ain't coming back from the dead this time. Once a cat kicks the bucket in the Warrior Cats world, they're as gone as yesterday's tuna. So, sorry to burst your bubble, but Spottedleaf is staying put in StarClan for good.
Lionheart, Redtail, Silverstream, Runningwind, Brindleface, Swiftpaw, Yellowfang, Spottedleaf, Bluestar.
When she is awake, she doesn't. But, sometimes in dreams, she remembers the old ThunderClan camp and life when she was Cinderpelt, a Medicine Cat.
Spottedleaf is murdered in the very first warriors book, Into the wild, by a shadowclan warrior; Clawface. In the last book of the 4 series of Warriors, Spottedleaf's spirit saves Sandstorm from being killed by Mapleshade. Firestar grieves as Spottedleaf fades, she can no longer live in StarClan. Instead of meeting her in StarClan, Firestar loses his last life (Tigerstar attacked him, Firestar killed Tigerstar's spirit but still died from the injuries) and has to wait for Sandstorm to accompany him someday.
Yes, Spottedleaf returns as a spirit and occasionally communicates with other cats from StarClan in the Warrior Cats series. However, she does not physically come back to life in the same way as before.